Home / 1,871,391,999.40-2,807,087,999.10-491,346,010.60

Finding the Fourth Proportional to 1,871,391,999.40, 2,807,087,999.10 and 491,346,010.60

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Solution

The fourth proportional to 1,871,391,999.40, 2,807,087,999.10 and 491,346,010.60 is: 737,019,015.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871,391,999.40 : 2,807,087,999.10 = 491,346,010.60 : x
  2. Step 2: Convert to fraction form
    1,871,391,999.40/2,807,087,999.10 = 491,346,010.60/x
  3. Step 3: Cross multiply
    1,871,391,999.40x = 2,807,087,999.10 × 491,346,010.60
  4. Step 4: Simplify right side
    1,871,391,999.40x = 1,379,251,489,760,921,344
  5. Step 5: Solve for x
    x = 1,379,251,489,760,921,344/1,871,391,999.40
  6. Step 6: Final answer
    x = 737,019,015.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.